<?php
// Get the action from command line arguments
$action = $argv[1] ?? 'status';

// Check if OPCache is installed
if (!function_exists('opcache_get_status')) {
    echo json_encode(['status' => 'error', 'message' => 'OPCache is not installed']);
    exit(1);
}

// Function to get current OPCache status
function get_opcache_status() {
    $status = opcache_get_status(false);
    if ($status === false) {
        return false;
    }
    return $status;
}

// Function to get OPCache configuration
function get_opcache_config() {
    $config = opcache_get_configuration();
    if ($config === false) {
        return false;
    }
    return $config;
}

// Handle different actions
switch ($action) {
    case 'enable':
        // Enable OPCache
        if (!ini_set('opcache.enable', '1')) {
            echo json_encode(['status' => 'error', 'message' => 'Failed to enable OPCache']);
            exit(1);
        }
        $message = 'OPCache enabled successfully';
        break;

    case 'disable':
        // Disable OPCache
        if (!ini_set('opcache.enable', '0')) {
            echo json_encode(['status' => 'error', 'message' => 'Failed to disable OPCache']);
            exit(1);
        }
        $message = 'OPCache disabled successfully';
        break;

    case 'status':
    default:
        // Get current status
        $status = get_opcache_status();
        $config = get_opcache_config();
        
        if ($status === false || $config === false) {
            echo json_encode(['status' => 'error', 'message' => 'Failed to get OPCache status']);
            exit(1);
        }

        echo json_encode([
            'status' => 'success',
            'data' => [
                'enabled' => $config['directives']['opcache.enable'],
                'memory_usage' => [
                    'used' => $status['memory_usage']['used_memory'],
                    'free' => $status['memory_usage']['free_memory'],
                    'wasted' => $status['memory_usage']['wasted_memory']
                ],
                'statistics' => [
                    'num_cached_scripts' => $status['opcache_statistics']['num_cached_scripts'],
                    'hits' => $status['opcache_statistics']['hits'],
                    'misses' => $status['opcache_statistics']['misses']
                ]
            ]
        ], JSON_PRETTY_PRINT);
        exit(0);
}

// Get status after action
$status = get_opcache_status();
$config = get_opcache_config();

if ($status === false || $config === false) {
    echo json_encode(['status' => 'error', 'message' => 'Failed to get OPCache status after action']);
    exit(1);
}

echo json_encode([
    'status' => 'success',
    'message' => $message,
    'data' => [
        'enabled' => $config['directives']['opcache.enable'],
        'memory_usage' => [
            'used' => $status['memory_usage']['used_memory'],
            'free' => $status['memory_usage']['free_memory'],
            'wasted' => $status['memory_usage']['wasted_memory']
        ],
        'statistics' => [
            'num_cached_scripts' => $status['opcache_statistics']['num_cached_scripts'],
            'hits' => $status['opcache_statistics']['hits'],
            'misses' => $status['opcache_statistics']['misses']
        ]
    ]
], JSON_PRETTY_PRINT);